I'm not sure where the guys are right now or if you still having that issue but it is likely related to the CDN news from a few days ago, which seems to be the cause for some other issues too.
Fedia Discussions
If you can, please try again. If you still have problems, shoot me an email to jerry@infosec.exchange and I'll troubleshoot the issue
Any news about the federation issues?
Edit: There it goes. Still curious if this affected less obvious instances too though.
Sorry it's taken so long to give it a shot, been a busy couple weeks.
Maybe I'm missing something, but it looks like registration is completely disabled now.
I did end up disabling registration due to spam. I can either open them up at a time you’re free to try again or I can manually create an account for you.
Oh, that would be super cool, thanks! I hate to have you do it for me, but my schedule is all kinds of abnormal right now. If you wouldn't mind, that would be great! DM me if you need any info!